package org.example.codetrail.interceptors;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.example.codetrail.utils.JwtUtil;
import org.example.codetrail.utils.ThreadLocalUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.HashMap;
import java.util.Map;

@Component
public class LoginInterceptor implements HandlerInterceptor {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)throws Exception{
        //String token=request.getHeader("Authorization");
        try {
            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
            Integer id=Integer.parseInt(operations.get("id")) ;
            String username=operations.get("username");
            if(id==0){
                //存储的信息失效
                throw new RuntimeException();
            }
            Map<String,Object> claims=new HashMap<>();
            claims.put("id",id);
            claims.put("username",username);
            ThreadLocalUtil.set(claims);
            return true;
        } catch (Exception e) {
            response.setStatus(401);
            return false;
        }

    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        ThreadLocalUtil.remove();
    }

}
